Sneak into a world of underground assassins as Harman Smith, a man who manifests 7 deadly personalities, the killer7. Take control of this distinct murderers' row as they hunt down the sinister Kun Lan to thwart his plan of world dominance.
The game blends on-rails shooting with unconventional control schemes. Players take control of Harman Smith, a man who can manifest seven distinct assassin personas, each with unique abilities, weapons, and combat styles. The primary gameplay loop involves navigating through levels in a third-person perspective, using a limited set of movement controls to progress on predefined paths. However, "Heaven Smiles" - invisible enemies - will materialize and attack the player. To combat these foes, players must switch to a first-person aiming mode, scan the environment to reveal the enemies, and precisely target their weakpoints. This blend of limited movement controls and precision-based combat creates a distinctive experience. Players must carefully manage their resources, swap between personas to take advantage of their unique skills, and react quickly to emerging threats. The on-rails nature of the traversal also encourages exploration, as players can backtrack and search for secrets and collectibles.
Each of the seven personas has their own unique weapon, abilities, and personality. For example, Garcian Smith can use his "telegnosis" ability to reveal hidden enemies, while Coyote Smith specializes in lock-picking and stealth. Players must strategically choose which persona to use based on the challenges they face, leveraging the strengths and weaknesses of each character.
The game also features puzzle-solving elements throughout its levels. Players must use their personas' unique abilities to overcome environmental obstacles, uncover secrets, and progress the narrative. These puzzles range from simple lock-picking challenges to more abstract, surreal conundrums. The on-rails structure encourages exploration, as players can backtrack and search for hidden items, collectibles, and additional story content. This nonlinearity allows for a more open-ended gameplay experience, where players can discover the game's mysteries at their own pace.